I'm not sure it's analogous. Most people (I assume) have already entertained the possibility of sleeping with someone before going on a first date. Hence, it is assumed both parties are sexually interested in each other. One person might express revulsion at the other party's forwardness, or for some other reason, but they started with a mutual sexual interest. They both share a common goal, they just might differ on the best way to reach it.
On the other hand, consider a guy who is outright afraid of marriage. He goes on a date, fully uninterested in ever marrying the girl, and is scared by the girl's forwardness about marriage. Really, he would be scared regardless of the point in the relationship marriage was brought up. There was never any mutual marital interest to start with. It isn't a mismatch in how to proceed, it's a fundamental mismatch in goals.
Considering that there are some asexuals who have romantic and potentially marital interests without sexual interests, and significant subcultures in which sex before marriage is considered completely inappropriate, I don't think that's a fully general disanalogy.
Edit: Or to put it differently, I think you're presupposing that "the point" of dating is to have a relationship that involves sex. Perhaps conflicting presuppositions of this nature are part of the problem in the case of the story and the reverse case I suggested. Illustration: our he...
2:45:24 PM Katja Grace: The main thing that puts me off in online dating profiles is lack of ambition to save the world
2:45:35 PM Katja Grace: Or do anything much
2:48:03 PM Michael Blume: *nods*
2:48:07 PM Michael Blume: this is indeed a problem
2:57:55 PM Katja Grace: Maybe there is a dating site for smart ambitious nerds somewhere
2:58:25 PM Katja Grace: Need to set up lw extension perhaps
2:59:02 PM Michael Blume: haha, yes ^^
3:00:40 PM Katja Grace: Plenty of discussion on why few girls, how to get girls, nobody ever says 'oy, girls on lw, want to get together some time?'
3:01:14 PM Michael Blume: somebody really should say that
3:01:34 PM Michael Blume: hell, I'm tempted to just copy that IM into a top-level post and click 'submit'
3:01:48 PM Katja Grace: Haha dare you to